Rivet holding and setting tool



Jul 8, 1924. 1.500,253 F. A. MILLER I RIVET HOLDING AND SETTING TOOLFiled Dec. 14. 1923 Patented July 8, 1924.

UNITED STATES 1,500,253 PATENT OFFICE.

FRED A. MILLER, or s TiIlouIs, MISSOURI, ASSIGNOR or ONE-HALF ToBENJAMIN n.

a TATE, or sT. LOUIS, M ssooaI.

YnIvET HOLDING Ann SETTING TooL.

Application flled December 14,1923. SerialNo. 680,644.

To all whom it may concern:

Be it known that I, FRED. A.MILLER, a citizen of the United States,residing at the city of St. Louis, State of Missouri, have invented acertain new and useful Improvement in Rivet Holding and Setting Tools,of which the following is a specification, reference being had to theaccompanying drawing, forming a part thereof.

This invention relates generally to tools and, more particularly, to acertain new and useful improvement in tools of the type adapted formanual manipulation in the holding and setting of rivets.

Many difierent kinds- 0f rivet-work, such, for instance, as the renewalof riveted linings upon automobile transmission and brake-bands, aretoday carried on in rel atively small machine-shops" where the businessidone does not permit or warrant the equipment including an expensive orcostly machine-riveter; and it is the chief object of my presentinvention to provide an inexpensive, durable, manually manipulativetoolrcapable of effecting riveting-operations withsafety, convenience,and efliciency.

With the above and other objects in view, my present invention residesin the novel features of form, construction, arrangement, andcombination of parts hereinafter described and pointed out in theclaims.

In the acompanying drawing,

Figure 1 is a vertical sectional view of a rivet-holding and settingtool embodying my invention;

Figure 2 is an elevational view of the tool; Figure 3 is an elevationalview of the main or body-portion of the tool; and

Figure 4 is an inverted end view of the body of the tool.

Referring now more 'indetail and by reference characters to the drawing,which illustrates a preferred embodiment of my invention, the main orbody-portion of the tool is preferably in the form of a suitablyelongated hollow cylindrical or tubular member 1 having a boreintermediate its ends, as at 2, of a diameter to snugly lengthwiseaccommodate a reciprocable plunger 3. At its lower end, the bore of body1 is slightly reduced in diameter, as at 2', to provide an annular seat,as at 4, for the extreme marginal rim-portion only of the head 5 of arivet R, and in approximately the plane of the rivet-seat 4, the

'5 of the rivet R."

body-member 1 is upon one side transversely cut-away or slotted, as at6, and also upon the same side from the slot 6-to its lower endlongitudinally cut-away, as at 7, to permit convenient placement of therivet R in the body'l, with its head 5-upon the seat 4 and its prongs 8presented outwardly for setting operation, as illustrated in Figure 1.-At its lower portion, the plunger 3 is correspondingly reduced indiameter, as shown, for reciprocation in the reduced bore 2' of the body1 and upon its lower end is preferably suitably ooncaved, as: at 9, tocorrespond with-the convexity of the'head At its-upper portion, the body1 is counterbore'd, as atl'O, for accommodatinga springbody 1 and coiledabout'the plunger 3 with its lower end abutting against the collar11,fis'a spring 12.

' Threaded upon the upper end of-the body '1 and providing at itsend-wall 13 a abutment or collar 11 fixed on the plunger *3intermediateits sends, and fitting :in' the In use and operation, theplunger 3 is v suitably manually or otherwise manipulated against thetension of spring 12, to locate its lower end above the plane of theseat 4 to permit the placement in the tool of a rivet R. The plunger 3is then released to yieldingly engage the rivet to hold the same to itsseat. The tool is then manipulated to properly locate the rivet-prongs 8upon the work, when by means of an impacting blow delivered upon theupper end of the plunger 3, the plunger 3 will be driven downwardly andthe rivet R driven from the tool with the marginal rim of its head 5sheared off and its prongs 8 seated in and clinched or-upset upon thework. Y

My new tool is simple, compact, and inexpensive in form andconstruction, is conveniently manipulated upon and in connection withthe work, and is exceedingly efiicient in the performance of itsintended functions.

I am aware that minor changes in the form, construction, arrangement,and combination of the several parts of my new tool may be made andsubstituted for those herein shown and described without depart ing fromthe nature and principle. of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. A riveting tool comprising a tubular body, a rivet-head seat at oneend of said body comprising a recess adapted to receive the marginalportion of the head of a rivet, and a plunger cooperating with saidrivethead seat adapted to shear off thatportion of the rivet notreceived in said head seat and set the same.

2. A riveting tool comprising a tubular body, a rivet-head seat at oneend of said body comprising a recess adapted to receive the marginalportion of the head of a rivet. and a plunger cooperating with saidrivethead seat adapted to hold the rivet in said seat and to shear offthat portion of the rivet not received in said rivet-head seat and setthe same.

3. A riveting tool comprising a tubular body, a rivet-head seat at oneend of said body comprising a recess adapted to receive the marginalportion of the head of a rivet, and a spring-pressedplunger-reciprocable in the body and cooperating with-said rivetheadseat adapted to hold the rivet in said seat and to shear ofi? thatportion of the rivet not received in said rivet-head seat'and set thesame the force of an impacting blow delivered upon its upper end toshear ofi' that portion of the rivet not received in said rivet headseat and set the same. 1

5. A riveting tool comprising a tubular body, a rivet-head seat at oneend of said body comprising a recess adapted to receive themarginalportion of the head'of a rivet, the body being slotted and cut away atsaid end in communicationwith said seat for seating the rivet, an endcap disposed upon the other end of the body, a plunger reciproca'ble inthe body and through the end wall of the cap co-operating with saidrivet head seat, and a spring disposed in the body and about the plungerand engagingthe plunger and the end wall of the cap for yieldinglyretaining the plunger in projected position, the plunger being adaptedunder the force of an impacting blow delivered upon its upper end toshear ofi that "portion of the rivet not received in said seat and setthe same.

In testimony whereof, I have signed my name to this specification. I

FRED. A. MILLER.

